garrett jaeger [he/him] is the founder of winded.vertigo, a learning design collective based in marinwood, california. he steers this collective of creatives to focus on projects that weave together design principles and scientific rigor–to explore questions and create conditions for playful learning. garrett was an evidence specialist at the LEGO foundation for five years, where developmental needs were viewed as design opportunities for creating flow in playful learning experiences. he helped shift research at LEGO from traditional focus groups and paper-and-pencil tests into ai-enabled documentation of what occurs in situ as children are learning through play. garrett led a similar integration of stealth assessment within programmatic activities. his work has been contextualized in numerous geographic contexts around the world. as a former teacher in preschools, secondary schools, and universities, garrett continues designing and facilitating playful experiences where children inspire adults, ideas lead logistics, and evidence checks intuition.